Wheel cover exterior surface for a lift truck



FIG. 1 is a perspective view of a wheel cover exterior surface for a lift truck showing my new design; and,

FIG. 2 is an enlarged front elevation view thereof.

The broken line showing environmental structure in the drawing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a wheel cover exterior surface for a lift truck, as shown and described. 